Q–Our 26-year-old home needs a new roof. The architect who designed the house advised us to consider a roof that is first covered with tar, then a layer of stones. The roof, which has a very low pitch ...

Q:We would appreciate your advice regarding our San Francisco home's roof. We have a 1915 Edwardian with a flat tar-and-gravel roof in one of the "sunny" San Francisco neighborhoods. We've had the ...

Question: We own a home that was built in 1964. We love many aspects of the home, especially its unique design. It has a 2/12 pitch roof that has the original tar-and-gravel material. We feel like the ...

Anyone building a new home or business–or renovating an older structure–could slash their heating and cooling bills by 25 percent, double the life of their roof, reduce stormwater runoff, help clean ...

A popular question we hear over and over again is "Why can't we use shingles on our flat roof?" The answer is simple. Shingles are not waterproof. When installed correctly they form a water tight ...

Flat roofs share one trait: with time, they tend to leak. You can, of course, have a new hot-tar-and-gravel roof put down but sometimes there may be a design reason for adding a pitched roof as a long ...

Q: We have a two-story house built with a back patio that is covered by a tar and gravel roof. Now when I look out on that roof, most of the gravel is gone. It apparently washed off in the rain over ...